Home / 25,769.64-38,652.60-7,999.85

Finding the Fourth Proportional to 25,769.64, 38,652.60 and 7,999.85

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Solution

The fourth proportional to 25,769.64, 38,652.60 and 7,999.85 is: 11,999.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,769.64 : 38,652.60 = 7,999.85 : x
  2. Step 2: Convert to fraction form
    25,769.64/38,652.60 = 7,999.85/x
  3. Step 3: Cross multiply
    25,769.64x = 38,652.60 × 7,999.85
  4. Step 4: Simplify right side
    25,769.64x = 309,214,808.85
  5. Step 5: Solve for x
    x = 309,214,808.85/25,769.64
  6. Step 6: Final answer
    x = 11,999.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.